An excellent, cheap plan if you've never set up samba etc. before. To those rolling their eyes at a "toy" solution (and it's better than that), when you _do_ need a bit more performance and more discs I'd highly recommend one of these http://www.ebuyer.com/281915-hp-proliant-turion-ii-n40l-micr... which HP have been practically giving away for years (£89 after cashback!) - a bit larger & faster than a Pi, 1GiB RAM, four hot-swap drive bays and gigabit ethernet.
